overflow 设置滚动条

div
  {
  width:150px;
  height:150px;
  overflow:scroll;
  }

overflow:

详细见：  http://www.w3school.com.cn/cssref/pr_pos_overflow.asp

 

转载于:https://www.cnblogs.com/xie-xiao-chao/p/7985849.html